Intro to Astronomy

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Transcript of Intro to Astronomy

QUESTIONS The following clues are from the Astronomy unit. Do your best to guesswhat the answer is. 1. The study of the moon, stars, and other objects in space. 2. The imaginary line that passes through Earth’s center and the North and South poles. 3. The spinning of Earth on its axis. 4. The movement of one object around another. 5. The path Earth follows around the Sun. 6. The tendency of an object to resist a change in motion. 7. This force attracts all objects toward each other. 8. The amount of matter in an object. 9. The force of gravity on an object. 10. The different shapes of the moon you see from Earth. 11. When an object in space comes between the sun and a third object, it casts a shadow on that object. 12. The rise and fall of ocean water that occurs every 12.5 hours or so. 13. What causes the phases of the Moon? 14. Does the Moon rotate? 15. Does the Moonhave gravity? 16. Why does the Earth have seasons? 17. How long does it take for Earth to go once around the Sun? 18. What are the two brightestobjects in the sky? 19. Are the Moon and theSun the same size? 20. Is the Sun a ball of fire? 21. How long does it take Earth to spin once around? ANSWERS 1. Astronomy 2. Axis 3. Rotation 4. Revolution 5. Orbit 6. Inertia 7. Gravity 8. Mass 9. Weight 10. Phases 11. Eclipse 12. Tides 13. How much of the sunlit side of the Moonfaces Earth. 14. Yes 15. Yes 16. Earth is on a tilted axis as it revolves around the Sun. 17. 365 1/4 days 18. The Sun and Moon 19. No 20. No 21. 24 hours